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CS-I User and Maintenance, R.2.8 ENG
Safco Systems Ltd-Via Isonzo 17/b-20090 Cesano Boscone-Milan-Italy
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7.4.
Welding mode "advanced"
7.4.1
Tips connections to CS-I/P
The methods are based on advanced welding a good understanding of what happens during
welding, thus requiring the connection of the probe voltage at the tips. In addition to wire cable to
the acquire power connector X3, you must set the parameter "VE Input" in the menu "System
Parameters” to “YES”.
7.4.2
Tips for the voltage acquisition
The voltage measurement is very delicate, because, unlike the current is influenced by the
measuring point and is very sensitive to electrical noise in the system. Keep in mind that when you
move the point of withdrawal in the relief of power, energy and strength change significantly,
necessitating a new parameterization of the weld.
is therefore necessary to define a stable point of measurement on the machine, and do not change
after defining the parameters of the ways, PK EK or AD. Pay attention to the polarity of connection
to the connector.
Adopt shielded cables and, if possible, entwined, the shield must be connected only by the inverter
into the input side of the connector X3.
The voltage measurement is strongly influenced by the electromagnetic field induced by the self-
sealing. Although the inverter is able to remove most of the effects of these disturbances, it is good
to hold them up to have good results and repeatable. In the selection of the site must be minimized
in the area enclosed between the two conductors. At the same time, the best measure would be
the point of the electrodes near the welding point.
Since the two requirements conflict, it is necessary to reach a compromise. In general, we
recommend:
•
In most cases [cf. Fig1], it is preferable to taken the voltage of the pliers where the arms are
divided. In this way, in fact, it avoids having cables in the space of the piece, you can avoid
subjecting the cable to continuous mechanical stress and you have a minimum area between
the two conductors.
In some special cases (for example, micro-welding) may be interesting to bring the sampling
point near the electrodes. In this case, if you always keep in mind that the two wires must be
as close together as possible (preferably twisted), and then there are problems of mechanical
interference with the machine part to be welded.
•
In any case it is advisable to separate the wires and move them connected to the arms of the
pliers, because in general this area is too big between the two cables.
•
An example of connection is shown in Fig1
Fig.1